Decision Tree for Regression

Decision Tree for Regression Models in Machine Learning

The ID3 algorithm can be used to construct a decision tree for regression type problems by replacing Information Gain with Standard Deviation Reduction – SDR
A decision tree is built top down from a root node and involves partitioning the data into subsets that contain instances with similar values mean homogeneous data.
Here, standard deviation is used to calculate the homogeneity of a numerical sample (target variable).

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Frequently Asked Machine Learning Interview Questions from Linear Regression

What is Covariance coefficient?

Covariance tells you whether two random variables vary with respect to each other or not. And if they vary together then whether they vary in same direction or in opposite direction with respect to each other. So if both random variables vary in same direction then we say it is positive covariance, however if they vary in opposite direction then it is negative covariance.


What is The Main Difference between RNN and CNN | NLP | RNN vs CNN

The main difference between RNN and CNN come from their structure of the Neural Network. Due to their specific design, CNNs are more fit for spatial data such as images whereas RNNs are more for temporal data that comes in sequence.

CNNs employ filters within convolutional layers to transform data. Whereas, RNNs reuse activation functions from other data points in the sequence to generate the next output in a series.

What is the main difference between RNN and LSTM | NLP | RNN vs LSTM

The main difference between RNN and LSTM is in terms of which one maintain information in the memory for the long period of time. Here LSTM has advantage over RNN as LSTM can handle the information in memory for the long period of time as compare to RNN. But the question is what is different in LSTM than RNN by which LSTMs are capable of maintaining long term temporal dependencies (remembering information for long period of time).

Language Models in NLP

Writing an email is something we do while walking on the road also. The most official mode of communication, So, have you ever seen the ‘Smart Compose’ feature automatically working in your Gmail giving you  instant ideas to finish sentences while composing an email? This is one of the different use-instances of language models utilized in Natural Language Processing (NLP). A language model is the core heart of the present day Natural Language Processing (NLP) domain. It’s a measurable device that investigates the example of human language for the forecast of words.

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